First version of the scripts to produce a dashboard for a GitHub project
They still don't work (but already produce all the tables in databases,
and are almost ready to produce JSON files).
Work in progress!
Not much more than copying from master branch
Merge branch 'newperiod' of github.com:VizGrimoire/VizGrimoireR into newperiod
Added new metrics:

* Evol: sent_init, messages that init a new thread
* Static: sent_init, and fixed sent_no_response
Merge branch 'newperiod' into mediawiki